CAT 083-5018 RING

CAT 083-5018 (0835018) is a Caterpillar genuine axle retaining ring (circlip/shaft retainer), compatible with 259D3/279D3 skid steer loaders and 906H/907H mini excavators. It is used for axial positioning of bearings/bushings in components such as connecting rod pins and boom joints of the working device, preventing axial movement of parts under vibration conditions and ensuring operational stability. Cat®…

Core Parameters and Information

Item Details
Part Model: CAT 083-5018 (0835018) Shaft Elastic Retaining Ring (Snap Ring)

Type: Elastic retaining ring for construction machinery shafts, used for axial positioning of bearings/bulbs

Material: 65Mn spring steel, galvanized and passivated for corrosion protection

Key Dimensions: Inner diameter 45mm, outer diameter 52mm, thickness 1.5mm, opening width 3mm, opening clearance 0.8mm

Performance Parameters: Radial spring force ≥2.5kN, extreme operating temperature -40℃ to +120℃, applicable speed ≤8000rpm

Compatible Models: CAT 259D3/279D3 skid steer loaders, 906H/907H mini excavators

Matching Relationship: Matched with working device connecting rod pins and boom joint bearing assemblies, providing axial positioning

Compatibility and Application

Compatible Parts: 259D3/279D3 This product is used for axial positioning of core transmission components such as the connecting rod pins and boom joints of skid steer loaders and 906H/907H mini excavators. It prevents axial movement of components under vibration, avoiding bearing damage and bushing wear, and ensuring operational stability.

Application Scenarios: Suitable for frequent load-changing operations such as excavation and loading, including continuous excavation and shoveling operations. It ensures the axial positioning of bearing assemblies and bushings under vibration, preventing component loosening and wear, reducing the risk of failure, and improving operational safety and reliability.

Compatible Use: Used with the connecting rod pins and boom joint bearing assemblies of the working device. The elastic retaining ring provides axial positioning, and the bearing assembly provides rotational support, adapting to long-term high-frequency vibration operations and preventing component fatigue damage.

Installation and Maintenance Points

Installation: Clean the pin groove and check its dimensions (width 1.5mm ± 0.05mm, depth 1.2mm ± 0.05mm); use dedicated snap ring pliers to pry open the retaining ring and insert it into the pin groove, ensuring the retaining ring is fully embedded without warping or looseness; after installation, check that the retaining ring fits snugly against the bearing/bushing end face without axial clearance.

Maintenance: Check the retaining ring every 200 hours for deformation, breakage, or corrosion; replace it immediately if any abnormalities are found; avoid using sharp tools to pry the retaining ring to prevent deformation or breakage, which could affect positioning performance.

Replacement: Use dedicated snap ring pliers when removing the old retaining ring to prevent damage to the pin groove; before installing the new retaining ring, check its dimensions and elasticity to ensure it matches the original specifications; after installation, test for axial movement of the components to ensure stable operation.